Historical clue formulations

• Word with federal or insurance — 2020-02-21
• F.B.I., e.g. — 2019-05-24
• Spook's employer, with "the" — 2008-08-07
• Bureau — 2007-11-11
• Means — 2007-03-01
• Bureau — 2004-06-06
• Instrumentality — 2002-04-20
• Bureau — 1998-04-03
• Reuters, for one — 1994-09-11